Scraper



C. LE BLEU Aug. 27, 1940.

S CRAPER Filed Nov. 20, 1936 4 Sheets-Sheet 1 INVENTOR.

ATTORNEYS.

(2. LE BLEU Aug. 27, 1940;

SCRAPER Filed Nov. 20; 1956 4 Sheets-Sheet 2 A TTORNEYS.

C. LE BLEU Aug. 27, 1940.

SCRAPER Filed Nov. 20, 1936 4 Sheets-Shoat 3 INVENTOR.

ATTORNEYS.

C. LE BLEU Aug. 27, 1940.

SCRAPER Filed Nov. 20, 1936 4 Sheets-Sheet 4 IN VEN TOR.

A TTORNEYS.

:Patented Aug. 27, 1940 PATENT OFFICE SCBAPER Charles Le Bieu, LosAngeles, Calif. Application November 20, 1936, Serial No. 111,884

6 Claims.

This invention relates to material digging, scraping, leveling'andtransporting machines as used in leveling ground, building roads,excavating, grading, transporting material etc.; and particularly tothat class of material moving machines commonly known as scrapers bymeans of which materials may be scraped up and transported.

An object of this invention is the provision in a scraper; of a frame, ascraper carried by the frame; a main carrier, including a bottom and aback plate, movably disposed rearwardly of the scraper; and an auxiliarycarrier movably disposed forwardly of the scraper.

Another object of the invention is the provision in a scraper; of aframe, a scraper carried by the frame, a main carrier operably disposedrearwardly of the scraper, an auxiliary carrier ope rably disposedforwardly of the scraper, means operably associating the main carrierand the auxiliary carrier for imparting movement to the auxiliarycarrier when the main carrier is operated and means for operating themain carrier.

Another object of the invention is the provision in a. scraper; asupporting frame adapted to be raised and lowered, a scraper rigid withthe frame, a main carrier tiltably disposed rearwardly of the scraper,an auxiliary carrier movably disposed forwardly of the scraper, meansoperably associating the main carrier and the auxiliary carrier forimparting movement to the auxiliary carrier when the main carrier istilted, means for tilting the main carrier and means for raising andlowering the supporting frame.

Another object of the invention is the provision in a scraper; of aframe, rolling supports for the rear end of the frame,-a scraper carriedby the frame, means for tilting the frame about the rear wheels as anaxis for determining the position of the scraper relative to the ground,a main carrier tiltably disposed on the frame rearwardly of the scraper,an auxiliary'carrier movably disposed forwardly of the scraper, operablemeans associating the main carrier and the auxiliary carrier forimparting movement to the auxiliary carrier when the main carrier istilted and means for tilting the main carrier.

Another object of this invention is the pro sion in a scraper; of a maincarrier including sidewalls, an auxiliary carrier disposed forwardly ofthe main carrier and having side walls disposed in alignment with theside walls of .the main carrier and in close proximity thereto toprevent materials spilling outwardly therebetwee Another object of thisinvention is the provision in a scraper; of a frame; a main carriertiltably disposed on the frame, an auxiliary carrier movably disposedforwardly of the main car- 10 rier both carriers being adapted todischarge material at their confronting ends, means disposed with themain carrier and the auxiliary carrier whereby when the bottom of themain carrier is tilted upwardly or downwardly from the horizontal theauxiliary carrier will be moved to open position and means to tilt themain carrier. 7

Still other objects, features and advantages of this invention will beapparent to those skilled in the art upon detailed perusal of theattached drawings and the following specifications wherein I describeand exemplify my invention, but it is to be understood that my inventionas herein exemplified and described is susceptible to modiflcation inthe combination, correlation and construction of parts, members andfeatures without departing from the spirit of the invention as. definedin the annexed claims.

In the drawingssimilar characters of reference designate correspondingparts in the several views.

In the drawings:

Figure 1 is a plan view of my invention.

Figure 2 is a side elevation of Figure 1, showing the various partsdisposed in carrying position.

Figure 3 is a side elevation in section taken on the broken line 3-4-34of-Flgure 1 showing the various parts disposed in the dumping posi- 40tion.

Figure 4 is a side elevation in section taken on the broken line 3-4-34ofFigure 1 showing the various parts in leading position.

Figure 5'is a fragmentary plan view in section taken on the broken line5-5 of Figure 2 and shows the side walls of the auxiliary carrierdisposed in alignment with and in close proximity to the frame platesthat serve as side walls for the main carrier so that materials may notspill outwardly therebetween.

Figure 6 is a fragmentary reproduction of Figure 3 showing a modifiedform of my invention.

Referring now to the characters of reference on the drawings the frame Fis supported at its rear end on an axle I having journaled thereonrolling supports 2. The frame F comprises rearwardly extending legs 3secured at their rear ends to axle I and at their front ends to crossbeams 4 and 5. Rigid with cross beams 4 and 5 are forwardly extendingside walls 6. Secured at its opposite ends each to the upper front endof a side wall 6 is a cross beam 1. A wedge shaped cross beam 8 isrigidly secured at its opposite ends each to a side wall 6. Detachablysecui'ed to wedge beam 8 is a scraper blade 9. Beginning at the lowerrear corners of sidewalls 6 are chan- I front ends with cross beam H.Rigidly securedat its rear end to cross beam II is a forwardly extendingbeam l2. Mounted in the side plates of beam l2 are spaced apart pins I3carrying rollers formed to receive a rectangular upright post l4, saidpost I4 being swivelly mounted at its lower end on a pony truck l5, saidpony truck l5 being provided with a draft beam I6 adapted in aconventional manner at its front end for connectionto a draft device.

The front end of frame F being mounted for vertical movement on post l4,means for imparting such movement to the front end of frame Fareprovided as follows: Rigid at its rear end with the upper end of postI4 is a forwardly extending arm l1. -Sheave means I8 is journaled on apin l9 carried by arm 11. Sheave means 20 is journaled on a pin 2|mounted in the front end of frame F operating relation to sheave means I8. A cable 22 is anchored at 23 to frame F and extends thence up anddown about sheaves I8 and 20 and thence downwardly about a directionchange sheave 24 thence forwardly to a winding drum not shown. Thuscable22 may be wound up to tilt the frame F upwardly about the rearwheels 2 as an axis and may be released to allow the frame F to tiltdownwardly about the rear wheels 2 as an axis.

A tubular member 25 extends from side wall 6 to the other of side walls6 just behind the wedge beam 8, said tubular member being journaledon ashaft 26 mounted at its opposite ends each on a side wall 6. Rigid withtubular member 25 is a bottom plate 21 carying a back wall 28. Securedalong the top edge of back wall 28 is a cross beam 29. Braces 30 arerigid at their upper ends with cross beam 29 and back wall 28 and attheir lower ends with bottom plate 21. Thus is examplified a maincarrier tiltably mounted on the frame, the side walls 6 being anintegral part of frame F.

Rigidlysecured to cross beam- 29 near each of its opposite ends arebrackets 3| provided with pins 32 having journaled thereon sheaves 33.

Rigid with cross beam II are bearings 34 having journaled therein apower shaft 35. Rigid with I power shaft 35 at each of its ends arewinding drums 36. Anchored at 31 are cables 38, preferably rectangularin their cross sections, passing rearwardly to and then upwardly aboutsheaves 33 and thence forwardly to winding drums 36 to which they areanchored.

Rigid with power shaft 35 near its center is a winding drum 39. Anchoredto winding drum 39 is a cable 46. A substantial amount of cable 48 iswound on drum 39 and passes thenceforwardly and then downwardly about asheave 4| and direction change sheave 42 and thence forwardly to awinding drum not shown. Thus, cable 48 may be wound up, on the windingdrum not shown, causing clockwise rotation of drum 33, power shaft 35and winding drums 36, thus winding up cables 38 on winding drums 36 withthe results that the main carriermay be tilted to the position shown inFigure 3.

Side walls 6 are each provided with a bracket 43 upon which is pivotallymounted the rear and a bottom 46, said side plates being also secured tothe bottom. Thus is exemplified an auxiliary carrier.

Pivotally mounted on braces at 41 are thrust members 46 adapted at theirupper ends to engage pins 49 rigid one with each of the arms 44. Thuswhen the main carrier is tilted from the horizontal upwardly to theposition shown in Figure 3, the auxiliary carrier, because of the actionof thrust members 48 upon pins 43, will also be moved to the positionshown in Figure 3.

Also pivotally mounted upon each of the brack-- its opposite ends eachto the rear end of an arm 50. .Cross beam 54 is provided between itsends with brackets 55 carrying a pin 56 having journaled thereon aroller 51. Beam 29 is provided with a bent arm 58 positioned to engageroller 56. Thus it will be seen that if cable 48 is released the maincarrier may tilt downwardly to the position shown in Figure4 and theweight of the main carrieris such that when applied by bent arm 58 toarms 58 through the roller 56 and cross beam 54 the auxiliary carrierwill also be moved to the position shown in Figure 4.

Viewing Figure 5, it will be noted that side I walls 6 of the maincarrier and side walls 45 of the auxiliary carrier are in alignment andin close proximity to each other to prevent materials from spillingoutwardly therebetween. It

will also be noted that the front edges of side walls 6 and the rearedges of side walls 45 coincide with a circle the focal point of which,is

the pivotal connection of arms 44 with brackets 43.

Assuming the position of Figure 2, then in operation to load thecarriers suitable operation of cable 46 will dispose the carriers in therelative position shown in Figure 4, and suitable operation of cable 22will dispose the scraper 6 in scraping contact with the ground and asthe machine is moved forward while in the position shown in Figure 4material scraped up by the scraper 9 will be forced rearwardly into themain carrier until loaded after which materials may fall forwardly intothe auxiliary carrier. It

' should be noted at this point that the auxiliary .Suitablemanipulation of cable 22 should then be made to raise the frame to theposition of Figure 2, in which position the load may be transported toany desired place of discharge. When the place of discharge is reachedsuitable manipulation of cable 40 will cause the carriers to assume thediunping position shown in Figure 3, the materials thus being dischargedat the front edge of the scraper. Obviously, the materials may be spreadany desired thickness by suitable manipulation of cable 22 to determinethe position of scraper 9 relative to the ground. All parts being in theposition of Figure 3, suitable ,manipulation of cable 40 may be resortedto for disposing the carriers in either of the positions shown inFigures 2 and 4, and suitable manipulation of, cable 22 will againdispose the scraper 9 in the position of Figure 4.

Attention is particularly directed to the position of the bottom of themain carrier during the operation of loading the same. Note that thesaid bottom inclines downwardly from the scraper 9 rearwardly, seeFigure 4, thus minimizing the resistance to rearward movement ofmaterial from the scraper 9 to the rear end of the bottom 21.

Attention is also directed to the fact that the main carrier is free totilt upwardly, should the bottom come in contact with large stones andthe like, without the necessity of lifting the weight of the entiremachine.

Figure 6 is a reproduction of Figure 3 exemplifying a modified form ofmy invention. Note that the cross beam 1 at the upper front corners ofside walls 6, pins 49 and thrust members 48 have all been eliminated inFigure 6, and to secure the action dependent upon pins 49 and thrustmembers 48 I provide in Figure 6 the following: A bracket 59 is securedto the back 28. Brackets 60 are secured to cross beam 4 at the lowerrear end of side walls 6 and are provided with a pin 6| having iournaledthereon a sheave 62. Brackets 55 are provided with a rearwardlyextending portion 63 carrying a pin 64 having journaled thereon a sheave65. A bracket 66 is secured to cross beam and extends rearwardlytherefrom. A cable 61 is secured at an end to bracket 66 and passesthence upwardly and then downwardly about sheave 65, thence downwardlyto and then upwardly about sheave 62 and is then mounted on bracket 59at 68. Thus is provided means for applying a downward pull to beam 54for swinging the auxiliary carrier to open position when the maincarrier is tilted to the dumping position as shown in Figure 6.

From the foregoing description it is apparent that I have exemplifiedsuch a device as substantially fulfills the objects of the invention asset forth herein.

Having thus described and exemplified my invention what I claim as newand useful and desire to secure by Letters Patent is:

1. In adevice of the character described, a frame, a scraper rigid withthe frame, a main carrier operably disposed behind the scraper toreceive materials therefrom, an auxiliary carrier operably disposed infront of the scraper to be loaded in common with the main carrier,thrust means operably associating the main carrier and theauxiliarycarrier for imparting movement to the latter when the maincarrier is operated, and means for operating the main carrier.

2. In a device of the character described, a frame, a scraper carried bythe frame, a main carrier tiltably mounted at its front end behind thescraper, an auxiliary carrier disposed forwardly of the scraper, armsrigid at their front ends with the auxiliary carrier and pivoted attheir rear ends on. the frame, operable means mounted on the frame andengaging said arms, and means carried by the main carrier for enagingsaid operable means to swing the auxiliary carrier upwardly when themain carrier tilts downwardly.

3. In a device of the character described, a frame, a scraper carried bythe frame, a main carrier tiltably mounted at its front end behind thescraper, an auxiliary carrier disposed forwardly of the scraper, armsrigid attheir front ends with the auxiliary carrier and pivoted at theirrear ends on the frame, operable means pivotally mounted on the frameand engaging said arms, and means disposed on the main carrier forengaging said operable means and swing the auxiliary carrier to openposition when the main carrier tilts downwardly past the horizontal.

4. In a scraper, a main carrier, side walls disposed one at each side ofthe main carrier, and an auxiliary carrier pivotally mounted forswinging movement in a vertical plane forwardly of the main carrier andhaving side walls disposed substantially in alignment with the sidewalls of the main carrier and in close proximity thereto to preventmaterial spilling outwardly therebetween, the confronting edges of saidside walls being formed to coincide with a circle the focal point ofwhich is the pivotal mounting of the auxiliary carrier.

5. In a scraper, a main carrier, side walls disposed one at each side ofthe'main carrier, an auxiliary carrier disposed forwardly of the maincarrier and having side walls disposed substantially in alignment withthe side walls of the main carrier and in close proximity thereto toprevent materials from spilling outwardly therebetween and meanspivotally mounting the auxiliary carrier on the side walls of the maincarrier for swinging movement in a vertical plane, the confronting edgesof said side walls being formed to coincide with a circle the focalpoint of which is the pivotal mounting of the auxiliary carrier on theside walls of the main carrier.

6. In a scraper, a frame including spaced apart side walls as arigidintegral part thereof, a scraper rigid with the side walls of the frame,a main bottom disposed between the side walls and tiltably mounted atits front end behind the scraper, an auxiliary bottom disposed forwardlyof the scraper and having side walls disposed substantially in alignmentwith the side walls of the frame and in close proximity thereto toprevent materials from spilling outwardly therebetween and meanspivotally mounting the auxiliary bottom on the side walls of the framefor swinging movement in a vertical plane, the confronting edges of theside walls being formed to coincide with a circle the focal point ofwhich is the pivotal mounting of the auxiliary bottom on the side wallsof the frame.

CHARLESIEBLEU.

